Rename Red Knot (#17820)

crates/ty_python_semantic/resources/mdtest/diagnostics/unpacking.md

@@ -0,0 +1,27 @@
+# Unpacking
+
+<!-- snapshot-diagnostics -->
+
+## Right hand side not iterable
+
+```py
+a, b = 1  # error: [not-iterable]
+```
+
+## Exactly too many values to unpack
+
+```py
+a, b = (1, 2, 3)  # error: [invalid-assignment]
+```
+
+## Exactly too few values to unpack
+
+```py
+a, b = (1,)  # error: [invalid-assignment]
+```
+
+## Too few values to unpack
+
+```py
+[a, *b, c, d] = (1, 2)  # error: [invalid-assignment]
+```